Cutom Array Inspector in a Custom Inspector

I want to make a custom inspector for an array of serialized classes, that can be displayed in a custom inspector of a controller class. I have made a limited capability of this, which can't support serializedObject, or at least I don't know how too. So I can't get any UnityEvents, Classes, etc in the Inspector.

Here is my Serialized Class that will be in the Array

 [System.Serializable]
 public class CustomArrayClassExample
 {
     public class SubClass
     {
         GameObject obj1;
         string str1;
     }
 
     public bool hasObj;
     public GameObject obj;
 
     public bool hasUnityEvent;
     public UnityEvent unityEvent;
 
     public bool hasSubClass;
     public SubClass subClass;
 
 #if UNITY_EDITOR
     public void CustomInspector()
     {
         
         bool show = false;
         //EditorGUI, EditorGIULayout, GUILayout...
         EditorGUI.indentLevel++;
 
         hasUnityEvent = EditorGUILayout.Toggle(new GUIContent("Has UnityEvent", "Does this have an associated unity Event"), hasUnityEvent);
         if (hasSubClass)
         {
             // TODO: ADD Unity Event Inspector support
         }
 
         hasObj = EditorGUILayout.Toggle(new GUIContent("Has Object", "Does this have an associated object with it"), hasObj);
         if (hasObj)
         {
             obj = (GameObject)EditorGUILayout.ObjectField( new GUIContent("Game Object"), obj, typeof(GameObject), true);
         }
 
         hasSubClass = EditorGUILayout.Toggle(new GUIContent("Has SubClass", "Does this have an associated subclass"), hasSubClass);
         if (hasSubClass)
         {
             //ERROR
            // subClass = (SubClass) EditorGUILayout.ObjectField(subClass, typeof(SubClass), true);
         }
 
         EditorGUI.indentLevel--;
     }
 #endif
 
 }
 

And here is my Controller Class:

 public class CustomArrayControllerExample : MonoBehaviour {
     public int maxArrSize = 25;
 
     public int numSerialClasses = 1;
     public List<CustomArrayClassExample> serialClass = new List<CustomArrayClassExample>();
     
 
 
 #if UNITY_EDITOR
     [CustomEditor(typeof(CustomArrayControllerExample))]
     public class MyScriptEditor : Editor
     {
         bool[] showPositions;
         override public void OnInspectorGUI()
         {
             var myScript = target as CustomArrayControllerExample;
 
             EditorGUILayout.HelpBox(string.Format("The current maximum supported size for an array is {0}.  This can be changed in the code by changing\n\tpublic int maxArrSize = 25;", myScript.maxArrSize), MessageType.Warning);
 
             myScript.numSerialClasses = EditorGUILayout.IntField(new GUIContent("Number in Array", "The number of elements present in the array"), myScript.numSerialClasses);
             Repaint();
 
             EditorGUI.indentLevel++;
             for (int i = 0; i < myScript.numSerialClasses; i++)
             {
                 showPositions[i] = EditorGUILayout.Foldout(showPositions[i], "Serial Class " + i);
                 if (showPositions[i])
                     if (Selection.activeTransform)
                     {
                         serializedObject.Update();
                         myScript.serialClass.Add(new CustomArrayClassExample());
                         myScript.serialClass[i].CustomInspector();
 
                         serializedObject.ApplyModifiedProperties();
                     }
 
                 if (!Selection.activeTransform)
                 {
                 }
 
             }
             EditorGUI.indentLevel--;
 
             serializedObject.Update();
            // EditorGUILayout.PropertyField(serializedObject.FindProperty("serialClass"), true);
             serializedObject.ApplyModifiedProperties();
             
         }
 
         private void OnEnable()
         {
             var myScript = target as CustomArrayControllerExample;
             showPositions = new bool[myScript.maxArrSize];
 
         }
     }
 #endif
 
     // Use this for initialization
     void Start () {
     }
     
     // Update is called once per frame
     void Update () {
         
     }
 }
 

So here is what the Controller looks like in the inspector, as you can see I can toggle different EditorGUILayout fields, but I need to get UnityEvents and Classes: